Most of the time a backup quarterback doesn't expect to come into a game until his team is up by three touchdowns or more.
But then there are the exceptions to that unwritten rule of college football.
When an injury happens and the starter is not able to take snaps and run the offense effectively, the backup quarterback quickly becomes the go-to guy for the team in its moment of need and that was the situation for the Red Raiders on Thursday night.
"We needed a quarterback going in to make plays, that's big time," Texas Tech head coach Kliff Kingsbury said about Davis Webb entering the game against TCU. "Like I said (Webb) stayed focused through all this and not get his head down, not pout, and just come out and compete. That's what you're looking for."
After Baker Mayfield had to be helped off the field, Webb was called on to lead the Red Raiders on what would end up being the game-winning drive.
Webb stepped up and went 3-for-4 for 77 yards and a touchdown, which was a 19-yard pass to Bradley Marquez for the game-winner.
"A big spark," Marquez said. "He was prepared for the situation and it's credit to his preparation to be able to come in there at that point in time in the game to be able to come in there and do the job that he did. You know, there was no falloff, and definitely a spark for all of us and for him to control the game for us."
This marked Webb's second appearance of the season as he came in for the second half of the game against Stephen F. Austin earlier this season.
In that outing, Webb struggled a little going 11-for-17 for 127 yards, one touchdown and two interceptions.
But when it came down to game-winning drive Webb stepped up.
This did not come as a surprise to Kingsbury as he said ever since the decision was made to go with Mayfield; Webb has not stopped working and preparing for a moment like this.
"I mean that's what he's done," Kingsbury said. "How he's approached it since we made our decision. He's taken advantage of the reps. He's a good player. I mean, he's a really good player. I couldn't be more proud of the way he stepped up and came down and won the game for us."